Table base



FIG. 1 is a perspective view of a table base showing my new design;

FIG. 2 is a side elevational view, the opposite side being a mirror image thereof;

FIG. 3 is a side elevational view, the opposite side being a mirror image thereof; and,

FIG. 4 is a top view thereof.

The views of the table base not shown form no part of the claimed design. 

The ornamental design for a table base, as shown and described. 